Hoping to see Interstate shields, hoping, hoping, darn.
They would be A1, A2, etc?
I do wonder why, if Alaska does have federally funded Interstate stretches, they would choose to not sign them as such. It's not like Alaska had existing US Routes to worry about, nor do they even have that many numbered highways in the first place.
Most of the Alaska Interstate system isn't even close to Interstate standards, though about 50 miles of freeway (parts of A-1 between Anchorage and Palmer, A-3 in Anchorage, and A-4 east of Wasilla) meet or come close to standard. Also, the Interstate numbers don't synch with the existing state route numbers, with Interstate A-4 following AK 3, and Interstate A-3 following part of AK 1 south of downtown Anchorage. Posting the Interstate route numbers would just confuse people (mainly tourists, since locals ignore route numbers).
Alaska got its Interstate mileage in 1980 as a ploy to get more Federal funding, at ratios even more ridiculously favorable than what Alaska was already getting. It was all about money, not about getting Interstate shields erected in Alaska.